A young woman finds herself at Sword & Cross, a rehab center with cult-like qualities, to serve a sentence for a crime she has no memory of committing. While there, she meets the mysterious Daniel and the frustrating yet alluring Cam, all under the scrutiny of the ominous head doctor, Howson, and the pious twin sisters, Miriam and Sophia. Luce must unravel the enigma of her identity and her deep-rooted connection to Daniel, which predates their stay at the facility.